Lubrication



Patented Aug. 24, 1948 UNITED .STATES- PATENT OFFICE mimics-non Edward H. Kocher, Boonton, N. J., assignor to Auto Research Corporation, a corporation of Delaware Application August 3, 1940, Serial No. 350,653 3 Claims. (01. 1s4-e) tailed description is given by way of illustration and explanation only and not by way of limitation, since various-changes therein may be made by those skilled in the art without departing from the scope and spirit oi the present invention.

Associated with such junction or with the bearings will be high restriction metering fittings which will serve to proportion the quantity of lubricant supplied to the bearings.

In the drawings, which show one of the various forms of the present invention, but to which the invention is by no means restricted, since many changes and alterations may be made therein; all within the scope of the present invention,

Fig. 1is a fragmentary section of a part of a lathe construction showing the seal between two sections of the lathe mechanism to prevent leakage of lubricant;

Figs. 2 and 3 are diagrammatic detail enlarged sectional views. indicating the manner of sealing the passages across the parts to be lubri cated;

In Fig. 1, the base structure I0 carries the way II supporting the carriage I2. The carriage I2 is provided with an apron I3., The carriage I2 carries a transverse structure provided with a tool carrier (not shown).

As shown best in Fig. 1, the unrestricted prestially below the face I01 01 the carriage and the face H2 oi the apron I3 is pressed up against the face III of the washer I06. When this happens, the washer I06 will be expanded sidewardly into the recess I08 to 1111- the same and form a lubricant-tight seal.

The compression and sealing of the gasket I06 takes place automatically upon assembly of the carriage and the apron and this avoids the need of tubing connections with the corresponding dimculty of assembling and disassembling such units. The washer I06 may be readily inserted in recess I00 without difiiculty before assembly.

' The bore I06 (see Fig. 1) communicates with the transverse passage II3, which is plugged at Ill and is substantially completely filled by the filler pin I I5 having the oblique end faces. The

bore II3 feeds the socket II6,-the lower end of V which is widened and threaded at III to receive the threaded head II8 of the flow metering fitting IIII.

In the metering fitting II9, the lubricant flows toward the threaded head H8.

The threaded head I I8 has a pipe thread so that when tightenedit will automatically be lubricant tight.

The lubricant after passing the flow metering unit H9, as shown in Fig. 1, will be at relatively low pressure and it will not be necessary to provide a seal or gasket, such as I06. The lubricant will then drip directly into the recess I29 in the upper portion of the apron structure, which sure-feed tubing connection 98 and the Junction I00 fit in the space I02 at the top of the apron and just below the carriage where it feeds the bore I03, which in turn connects to the transverse is provided with a depending drip pipe I30 which permits lubricant to drip upon one oi the gear trains..

In operation, the lubricant will be fed under pressure from a pump (not shown) each time the carriage of the lathe is reversed. This will force lubricant into the tube 98 to the junction I 00.

The lubricant from the junction unit I00 will flow past the metering fitting I I9 to drip on one of stantially altogether concealed, as indicated in Fig. 1, and the construction is most compact and may be assembled onthe apron carriage and cross slide without increasing the bulk or substantially, increasing the cost of manufacture.

The tubing which is used is preferably for a bore of not more than of an inch, so that there will beno tendency 'ior the air bubbles to be tubing and bore system full-oi oil at all .times both before and after the flow metering units. and in this way even asmall quantity oi oil discharged by the pump into distributing system will give a definite pressure rise before the flow metering outlet units. which pressure will rise as high as 40 to 50 pounds per square inch.

Even without the use of the filler rods "8, it

will be possible to obtain a pressure of 5 to 8 pounds per square inch, which will assure the desired distribution of lubricant.

A divisional application Ser. No. '123,925,'flled January 24, 1947', is directed. to additional subject matter now cancelled from this application.

It will be understood that many changes could be made in'the particular features of lathe as shown, and many apparently widely diflerent'em- 'bodiments of this invention could be made without departing from the scope thereof, and it is intended that all matter contained in the above description shall be interpreted as illustrative and not in a limiting sense.

What is claimed is:

1. In a machine lubricating installation, a bore system, having communicating bores across a machine structure, the end of one of said bores being recessed to receive a gasket and said gasket being of greater depth than the recess so that upon assembly of the parts it will be compressed into its recess, the inner face oi said gasket substantially engaging the lateral wall of said recess, said gasket having oblique side walls spaced from and upon-compression being expanded to tightly .fl't against said lateral wall of the recess.

2. In a machine tool lubricating installation, a

' pressure bore system, having communicating bores 3. In a machine tool lubricating installation, a .pressure bore system, having communicating bores across a machine structure, the end of one oi said bores being recessed to receive a gasket and said gasket being of greater depth than the recess so that upon assembly of the parts it will be compressed into its recess, the inner face of said gasket substantially engaging the lateral wall of said recess said gasket having oblique side walls spaced Number from and upon compression being expanded to tightly fit against said lateral wall of the recess, said gasket substantially completely filling said recess upon compression.

' EDWARD H. KOCHER.

sameness crran The following references are of record in the file of this patent:

. UNITED s'ra'rns PATENTS Name Date Howells Dec. 25, 1894 Lemp Feb. 19, 1918 Carter Dec. 20, 1938 FOREIGN PATENTS Y Country 1 Date France July 21. 1931 Number Greuter June 10, 1924 Hewitt Sept. 7, 1937 h 

